The effects of worm infestation and fly-strike upon oestrous activity in Merino ewes.
D000818:Animals; D004971:Estrus; D005260:Female; D009198:Myiasis / Q000150:complications* / Q000662:veterinary*; D011247:Pregnancy; D012098:Reproduction; D012756:Sheep; D012757:Sheep Diseases / Q000150:complications*; D014252:Trichostrongyloidiasis / Q000150:complications* / Q000662:veterinary*